i have read those things now what i mean to say is :
i need to know the stiffness in the rear and the front. let me assume a "X N/mm" front stiffness spring. This I assumed arbitrarily. According to the post i should fix more stiffness spring in the rear so that the frequency would match. So how to select the stiffness in the rear can i just take the "X N/mm" as the reference and take the rear one as just higher value. Is this so is there anything that i should know while selecting the spring..?